Car-door-locking device.



F.-A. LESTER.

CAR DOOR LOCKING DEVICE.

APPLICATION FILED lULY25.-1916.

Patented Dec. 26, 1916.

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lilliliil INVENTOR WITH ESSESZ F. A. LESTER.

CAR DOOR LOCKING DEVICE.

APPLICATION FILED IULY 25. I916.

Patented Dec. 26,1916.

2 sums-sum 2.

lllllllll llr| III- ETED STATES PATENT .QFFIEE,

FREDERICK A. LESTER, OF CHICAGO, ILLINOIS, ASSIGNOR TO CHICAGO STANDARDEQUIPMENT COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF MAINE.

CAR-DOOE-LOCKING DEVICE. 8

Specification of Letters Patent.

Patented Dec. 26, 1916.

To all whom it may concern:

Be it known that I, FREDERICK A. LESTER, a citizen of the United States,residing at Chicago, in the countyof Cook and'State of Illinois, haveinvented certain new and useful Improvements in Car-Door-LockingDevices, of which the following is a full, clear, andexact description,such as will enable others skilled in the art to which it pertains tomake and use the same, reference being had to the accompanying drawings,forming a part hereof.

My invention relates in general to sliding doors, and has reference moreparticularly to a locking device adapted for locking the rear end of asliding door and maintaining the same against vertical and lateraldisplacement.

One of the principal objects of this invention is to improve theconstruction and increase the efficiency and utility of devices ofthischaracter. Another object is the pro vision of a locking device adaptedparticularly for locking the rear end portion of the door against a.siding or a door post flush with the siding, A still further object ofmy invention is to provide a locking device of this character capable ofholding the door in a ainst outward movement, not only in its closedposition, but also when the door is moved to partially open or openpositions. In this way any tendency of the door to side-swipe cars orother objects being passed is entirely overcome, and irrespective of theposition of the door with reference to the door opening.

These, together with such other'ob-jects as may hereinafter appear, orare incident to my invention, I obtain by means of the constructionillustratedin preferred form in the accompanying drawings, whereinFigure 1 represents a side elevation of a car body and a sliding doorembodying my devices, the door being in its closed position;

Figure 2 is an enlarged horizontal sectional view taken along the line2-2 of Figure 1; r r

Figure 3 represents a perspective view of my lockingdevice, the partsbeing dissociated;

Figure 1 is a view in perspective of the car body, with the doordetached therefrom to better disclose my invention;

Fig r s 5 a d 6 r p esent ertical ectional views taken along the lines55 of Flgl'ure 1 and 66 of Figure 41, respectively; an

Figure 7 is a perspective view of a fragmentary portion of the frontmarginal portion of the door illustrating the front terminal of myinvention.

Referring to the drawings, the numeral 8 indicates the car body orsiding having the usual door-opening 9 and provided with the customaryoverhead track 10 and lower brackets 11. Slidably hung from the track 10is a sliding door 12 whose lower marginal edge portion is engaged by thebrackets 11 when the door is moved to its closed position.

Referring now more particularly to Figure 4, the door 12, as shown,consists of an external closure body portion 13 ,and an inner frameportion therefor comprising the upper and lower battens 14:, front andrear battens 15 and 16, cross-pieces l7, and the central horizontalbatten 18, all of said members having flush inner faces, whereby in themovement of the door to its closed position the inner face of the rearbatten 16 is designed to be brought up tightly against the outer flushface of the door post 19 by my improved closure and lock device.

In this connection, the batten 18 is provided longitudinally with arecess 20, preferably co-extensive with its length, and die sirably maybe composed of two sections 18 and 18 spaced apart to provide thisrecess which is placed in line with the projecting bolt member,designated generally by the numeral 21 in Figure 1, secured to the outerface of the flush door-post 19.

This bolt member is provided with an attaching base 22 formed with aflanged head 23 and boltholes'22 through which pass the bolt elements 24for securing the member tothe door-post. Connecting the base and head isa shankor neck portion 25 angularly disposed with reference thereto. Itis intended that the head travel in and through this recess during doormovement, and with a view to maintaining the door against outward orlateral displacement I attach keeper plates 26 to the inner marginaledges of the batten members, such plates having inwardly extendingportions 26 projecting partially over the recess to hold the headtherein and to provide a rela tively narrower passage 27 therebetweenfor the neck (Figure 6). A terminal plate 28, attached to the front endof the door to span the recess, may be provided, such plate serving tobrace the batten members and to provide a stop where deemed necessary.This plate is attachable after the door is hung and the head has beeninserted into the front end of the recess.

At the rear end of the recess, a closure bracket member 29 is positionedthereacross and comprises an attaching base 30 having a lateral terminalplate 31 for closing said rear end, and provided with the longitudinalribs 32 whose inner faces are gradually inclined inwardly in a'directiontoward said plate 31 and the base of the recess 20, and which virtuallyform extensions of the keeper projecting portions 26. The base 30 isformed with bolt holes 80 for the reception of the attaching bolts 33which secure the bracket member to the door in the position shown.

Intermediately of the ribs 32, the web of bracket member is recessedlongitudinally and angularly to form a continuation 27 of the passage 27and to provide an upwardly inclined slideway 3st affording access to aninner seat for the neck 25, designated by the numeral 35, and a seat 86for the head 23 of the bolt member, both being disposed in the samevertical plane and constitute what I term as a stop seat. All memberscarried by the door are of course flush with its inner face.

WVith the parts positioned as above described, it will be obvious thatoutward displacement of the door is impossible, no matter what positionit may occupy; and the vertical relation of the door is maintainedduring door movement in view of the sliding contact of the bolt head 23with the inner faces of the portions 26 of the keeper plates 26. As thedoor moves to closed position, this sliding contact is maintained untilthe head reaches the ribs 32, and in its travel along their inclinedinner faces cooperates therewith to draw the rear end of the doorinwardly until the stop seat is reached, whereupon the confrontingportion of the door is brought tightly upagainst the door post 19, andwith the neck portion 25 taking up a position at the narrow end of theslot or slideway vertical displacement of the door is impossible. Anytendency on the part of the door to sag is overcome; and thedisengagement of the bolt member from the stop seat, in the oppositemovement of the door, is readily and easily obtained, there being nosevere binding of the parts in view of my improved construction.

copies of this patent may be obtained for What I claim is 1. In a deviceof the character described, the combination with a car door and car bodyhaving a doorway opening, of a bolt member secured to said car bodyadjacent the doorway opening and provided with an outwardly projectinglocking portion, said door having its inner face provided intermediateits ends with a longitudinal recess within which said outwardlyprojecting locking portion in varying positions of the door is normallypositioned, and a bracket member secured to the rear end of the door andformed with an open ended slot in alinement with said recess and aninner seat disposed in said recess adapted to be engaged by saidoutwardly projecting looking portion, said locking portion slidable insaid longitudinal recess in the opening and closing of the door toengage with and disengage from said seat, the slot pro- I viding accessfrom the recess to said seat; substantially as and for the purpose setforth. v

2. In a device of the character described, the combination with asliding car door and car body having a doorway opening therein adaptedto be closed by said door, of a bolt member secured to said car bodyadjacent the rear side of the doorway opening and .formed with anoutwardly projecting look.

ing portion, said door havingitsinner face provided with a recessextending longitudinally intermediately the. front and rear edgeportions of the door and into which said locking portion projects fortravel therein as the door has sliding movement, means on said door formaintaining the head in said recess, and-a bracket member carried'by thedoor at the rear end of said recess and pro vided with an inner seat forsaid locking portion, said-bracket member disposed in the plane of theinner face of the door and formed with a slot providing access from saidrecess to said seat.

3. In a door closure and lock device, the combination of a bracketmember composed of a substantially'fiat base body portion provided atone end with an angularly disposed terminal plate and formed with anopen ended slideway slot and inclined ribs eX- tending inwardly from theoppositeend'to provide a stop seat adjacent said terminal plate, and abolt member having angularly disposed locking portions adapted to entersaid slideway slot and engage with such stop seat. v H

In testimony whereof I have hereunto signed my name to thisspecification.

FREDERICK A. LESTER;

Washington, 1).. G."

